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Rogowski coil signal conditioner
| Supply Voltage Range (V) | +16.8 ...+31.2 |
| Frequency Bandwidth @ −3 dB (Typ, Hz) | 1500 |
| AC Insulation Test Voltage (kV) | 1.5 |
| Current Consumption (mA) | max. 350 @ 24 V |
| Load Resistance (Ω) | 0 - 1.5 |
| Temperature Coefficient (ppm/K) | 150 |
UNVERIFIED
The AI-P1A is a flexible clip-around Rogowski coil current sensor from LEM.
The accuracy class is Typ 0.5 (3). Typical applications include UNVERIFIED.
Key characteristics from the official datasheet: operating temperature −25 ...+70 °C. St.
| General Information | |
|---|---|
| Manufacturer | LEM |
| Product Series | AI |
| Product Reference | AI-P1A |
| Supply Voltage | 24 V DC |
| Measurement | — |
| Mounting | — |
| Application Domain | — |
| Environmental & Mechanical Characteristics | |
|---|---|
| Ambient Operating Temperature (TA) | −25 ...+70 °C. St |
| Ambient operating temperature (1) (TA) | −25 ...+70 °C |
| Ambient storage temperature (TAst) | −40 ...+85 °C |
| Relative humidity (non-condensing) (RH) | 95 % |
| Altitude above sea level | 2000 m |
| Mass (m) | 100 g |
| General dimensional tolerance | ±1 mm |
| Dimensions | 100 × 78 × 23.1 mm³ |
| Mounting on DIN rail (IEC 60715) | TH35-7.5 TH35-15 |
| Insulation Coordination | |
|---|---|
| RMS voltage for AC insulation test, 50 Hz, 5 seconds (Ud) | 1.5 kV |
| Flammability according to UL94 | V0 |
| Power Supply | |
|---|---|
| 24 V DC Supply voltage (UCDC) | +16.8 ...+31.2 V |
| Current consumption (2) (IC) | max. 350 mA |
| Auxiliary supply through micro-USB | 5 V |
| Input Signal | |
|---|---|
| Rogowski coil sensitivity selection | With push buttons |
| Selection indicator | bi-color LED |
| Rogowski coil sensitivities | 22.5, 70, 80, 85, 100, 120 mV/kA |
| Typical input impedance | 10 kΩ |
| Rated frequency (ƒr) | 50 … 60 Hz |
| Current measurement range selection | With push buttons |
| Current measurement range | 100, 200, 300, 400, 500, 600, 800, 1000, 1500, 2000, 4000, 5000 A |
| Overcurrent measurement range | 120 % |
| Short time withstand current on primary for 3 s (1) | 130 kA |
| Output Signal | |
|---|---|
| 0 ...1 A instantaneous current output mode (Iout) | Min 0 / Typ 1 / Max 1.2 A |
| Load resistance (RL) | Min 0 / Max 1.5 Ω |
| Temperature coefficient of (all output mode) S (TCS) | Max 150 ppm/K |
| Phase displacement @ 50 Hz or 60 Hz (Δφ) | Max 0.2 ° |
| Accuracy class | Typ 0.5 (3) |
| Linearity error (ɛL) | Max 0.1 % |
Note: Specifications are taken from the official AI-P1A datasheet. Parameters that could not be confirmed from the datasheet are marked UNVERIFIED.
Official technical documentation for the AI-P1A.
Outline dimensions, pin layout and connection diagrams of the AI-P1A are shown below.
| Outline Dimensions & Mechanical Data | |
|---|---|
| General dimensional tolerance | ±1 mm |
Note: All dimensions are in millimetres. Refer to the official datasheet for the complete dimension drawing.
Typical applications of the AI-P1A.
The characteristic curves of the AI-P1A from the official datasheet are shown below.
| Accuracy & Dynamic Characteristics | |
|---|---|
| Rogowski coil sensitivity selection | With push buttons |
| Temperature coefficient of (all output mode) S (TCS) | Max 150 ppm/K |
| Phase displacement @ 50 Hz or 60 Hz (Δφ) | Max 0.2 ° |
| Accuracy class | Typ 0.5 (3) |
| Linearity error (ɛL) | Max 0.1 % |
| Reference Conditions | |
|---|---|
| Ambient Temperature (TA) | 25 °C, unless otherwise noted |
| Output Load Resistance (RL) | Min 0 / Max 1.5 Ω |
| Rated Frequency (fr) | 50 … 60 Hz |
| Accuracy Class | Typ 0.5 (3) |
Note: Refer to the datasheet for the complete set of characteristic curves.
Other models of the AIP Series share the same measurement principle, mounting concept and output interface family.
